Maybe it's from all those childhood days of watching Mr. Ed talking to Wilbur through the top half of his stable door. Whatever it is, one thing is for sure: Americans have a fondness for the Dutch door.

A Pet Door That Makes Sense. The patio door conversion kit by Pet Door Guys is a sensibly designed, custom built, weather-tight panel that fits your existing sliding glass door. While the pet door keeps the weather out, you still have full use of the sliding door, latch and screen. Pets love the freedom. And so will you.